Hair coloring apparatus



FIG. 1 is a front view of a hair coloring apparatus embodying the design.

FIG. 2 is a back view thereof.

FIG. 3-4 are side views thereof.

FIG. 5 is a bottom view thereof.

FIG. 6 is a top view thereof; and,

FIG. 7 is an isometric view thereof.

The broken lines in the drawings are for illustrative purposes only and do not form part of the claimed design. 

CLAIM The ornamental design for a hair coloring apparatus, as shown and described. 